Wastegate Vacuum Test

Applying controlled vacuum directly to the actuator diaphragm and observing linkage and valve movement. It separates the mechanical actuator and wastegate response from the engine computer's command strategy.

Documented repairs

2013 MINI Cooper S Limp Mode: Wastegate Would Not Close

2013 MINI Cooper S Convertible (R57)

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A 2013 MINI Cooper S Convertible had low-boost and wastegate faults. Vacuum and camera testing showed the gate would not close, leading to turbo replacement.

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Fault Codes

• 2C57 Charging Pressure Control, Plausibility Pressure Too Low
• 003429 — Engine-Oil Pressure Sensor Plausibility Before Start
• 29E0 — Charge-Air Temperature Sensor Electrical, Short To B+
• 29E2 — Charge-Air Temperature Sensor Voltage Change Too Fast
• 2CB3 — Wastegate Valve Activation, Suspicion Of Fault
• P007B — Charge Air Cooler Temperature Sensor Range/Performance, Bank 1

Components

• Engine Oil Filter
• Engine Coolant
• Engine Oil
• Engine Oil Drain Plug
• Oil Filter Housing Gasket
• Exhaust Manifold Gasket

Models

• R57 MINI Cooper S Convertible

Repairs by System

• Diagnosis
• Engine
• Cooling
• Turbocharger

Symptoms

• Check Engine Light
• Reduced Power Warning